related to #1644 Added UI and translation lines for physically linked album list

admin/picture_modify.php

@@ -350,7 +350,7 @@ $template->assign(
 
 // categories
 $query = '
-SELECT category_id, uppercats
+SELECT category_id, uppercats, dir
   FROM '.IMAGE_CATEGORY_TABLE.' AS ic
     INNER JOIN '.CATEGORIES_TABLE.' AS c
       ON c.id = ic.category_id
@@ -373,7 +373,8 @@ while ($row = pwg_db_fetch_assoc($result))
   {
     $template->assign('STORAGE_CATEGORY', $name);
   }
-  $related_categories[$row['category_id']] = $name;
+
+  $related_categories[$row['category_id']] = array('name' => $name, 'isVirtual' => !isset($row['dir']));
   $related_categories_ids[] = $row['category_id'];
 }
 

admin/themes/default/template/picture_modify.tpl

@@ -187,7 +187,7 @@ $('#action-delete-picture').on('click', function() {
       </select>
       <div class="related-categories-container">
       {foreach from=$related_categories item=$cat_path key=$key}
-        <div class="breadcrumb-item"><span class="link-path">{$cat_path}</span><span id={$key} class="icon-cancel-circled remove-item"></span></div>
+      <div class="breadcrumb-item"><span class="link-path">{$cat_path['name']}</span>{if $cat_path['isVirtual']}<span id={$key} class="icon-cancel-circled remove-item"></span>{else}<span id={$key} class="icon-help-circled help-item tiptip" title="{'This album is physical, it can\'t be unlinked from the picture'|translate}"></span>{/if}</div>
       {/foreach}
       </div>
       <div class="breadcrumb-item linked-albums add-item {if $related_categories|@count < 1 } highlight {/if}"><span class="icon-plus-circled"></span>{'Add'|translate}</div>

admin/themes/default/theme.css

@@ -6481,7 +6481,8 @@ color:#FF7B00;
   font-weight: 400;
 }
 
-.breadcrumb-item .icon-cancel-circled {
+.breadcrumb-item .icon-cancel-circled,
+.breadcrumb-item .help-item {
   margin-left: auto !important;
   cursor: pointer;
   position: absolute;